Breech-loading gun



(No Model.) 4 SheetsSheet 1.

E PRINGLE BREECH LOADING GUN.

Patented Nov. 4, 1-890.

Mw i I I'll, a Y MW (No Model.) 4 Sheets-Sheet 4.

E. PRINGLE. BREEOH LOADING GUN.

' No. 439,895. Patented Nov. 4, 1890.

UNITED STATES PATENT OFFICE.

EUGENE PRINGLE, OF GLOVERSVILLE, NE? YORK.

BREECH-LOADING GUN.

SPECIFICATION forming part of Letters Patent No. 439,895, dated November 4, 1890.

7 Application filed March 8, 1890. Serial No. 343,199. (No model.)

T0 at whom it 12mg concern.-

Be it known that I, EUGENE PRINGLE, a citizen of the United States, residing at Gloversville,in the county of Fulton and State of New York, have invented certain new and useful Improvements in Fire-Arms, of which the following is a specification.

My invention relates to improvements in that class of fire-arms known as breechloading, and it consists in the combination of parts and devices hereinafter described, and specifically set forth in the claims.

The objects of this invention are, primarily, to provide in breech-loadingfire-arm mechanisms, by which the operation of parts will be advantageously improved and made more efficient; and, secondarily, to provide acombination of devices and elements whereby theimprovements in this invention can be embodied in fire-arms.

In -the drawings forming a part of this specication, Figure 1 is a sectional view of the stock, barrel, receiver, movable breech-block, finger-lever, and operating mechanism of the fire-arm. Fig. 2 isa view of the receiver from its lower side with the fore-arm plate inplace with the same. Fig. 3 is a sectional view of the stock, barrel, receiver, movable breechblock, and finger-lever, with the latter two thrown down and awayfrom the stock, and illustrates the manner in which the extractor is operated and the hammer is set at halfcock. Fig. 4 is a sectional view of the stock, barrel, receiver, breech-block, and finger'lever in place for firing, and illustrates the operating look mechanism provided with double settriggers. I Fig. 5 is a cross-sectional View taken at line 1 in 4. and looking toward the muzzle of the fire-arm. Fig. 6 is aview, part in section, taken in line 2 in Fig. a, andlooking toward the stock. Fig. 7 is an elevation show ing the part of the receiver broken away and exposing a side of the movable breech-block, to which the working mechanism is attached, and illustrating the same by dotted lines and showing the extractor by full lines. Fig. Sis a sectional view taken at line 3 in Fig. 1, and shows the barrel-wrench lever or arm thrown down preparatory to revolving the barrel. Fig. 9 is a side elevation of the hammer. Fig. 10 is a view of the same from its rear side.

rear side view of the same. Fig. 13 is a per spective view of the elastic keeper for bold ing the movable breech-block in place. Fig. 14: is a plan view of the trigger-plate, doubleset triggers, and their springs. Fig. 15 is a rear end view of the same taken at line 4 in Fig. 14.

The same letters of reference refer to similar parts throughout the several views.

In the drawings, A is a stock of the fire-arm.

B is the barrel.

C is the receiver (or frame) which holds the latter secure to the former and receives the movable breech-block and its operating mechanism.

D is the movable breech-block,and E is the finger-lever, secured to the said breech-block and having the trigger-guard integral with it.

The screw-threaded socket C is integralwith the receiver 0, and has its screw-threads preferably made with a square form, although they may be made V shape. The rear end portion of barrel B has integral with it the screw-threaded stem 1), having screw-threads corresponding with the screw-threads of the socket C. Secured to the lower side of the barrel B and neighboring the screwthreaded stem 1) is the lug F, which lug can be integral with the barrel or attached to it in a secure manner so as to have a secure and strong holding with the same without liability of its moving; yet I prefer to secure this lug to the said barrel by a dovetail form of connection consisting of tenon made with Fig. 11 is a side view of the fly. Fig. 12 is a said lug and a dovetail socket in the lower side of the barrel, substantially as shown in; Figs. 1, 3, 4, and 8. Secured to this lugF by means of the pivotpin f is a lever or arm G. The head end of this lever or arm is preferably provided with ears g g, through its.

which the pivot-pin f passes, to hold it se-'* cured to the said lug F. This lever being thus pivoted can be turned to position parallel with the lower side of the barrel, as shown by full lines in Figs. 1, 3, and 4:, and at will it may be turned to position of dotted lines in Fig. 1 and full lines in Fig.8. Vhen this lever is in position at an angle with the barrel, as shown by dotted lines in Fig. 1 and by full lines in Fig. 8, it may be employed for screw-threaded socket O or the reverse.

The ears 9 g of the lever G are made of a length sufficient to project past the rear side 'of the lug F to a distance of an eighth of an inch, (more or less), so that when the said lever is in horizontal position, as shown in Fig. 1, the ends of ears 9 will project rearwardly pastthe said lug and enter into the recess a, provided in the receiver 0, with their outer sides bearing against the sides of the said recess a, when the barrel will be secured from turning in either direction. When lever is thrown from position of full lines in Fig. 1 to thatof dotted lines in the same figure and to full lines in Fig. 8, the said projected portions -of the earsg g of'said lever will be thrown out of engagement with the sidesof; the recess a ofltherec'eiver O and be so unlocked asto allow the barrel B to be unscrewed out of socket O.

G? is the fore-arm, which is secured to the barrel B by any known holding device, as by a screw oripin. (Not shown.) This fore-arm has secured to it the fore-arm plate H, and has in its rearward portion and in its side neighboring the barrel B the recess G for receiving the lever G when in position of full lines inFig. 1.

The fore-arm plate H is extended rearward of the rear end of the fore-arm G to a distancesufficient-to close the opening in the receiver between theforward end of the finger-lever and the rear end of thefore-arm; With this extended portion of plate H are made the tongues h, which work in. the grooves h,

i made in the sides of the receiver 0, as shown inFigS. Bytheemploymentofthesetongues hwith said grooves h the rear end of the fore-arm may be readily and securely locked with both the, receiver and the barrel. When the lever G is to be moved from full lines to dotted lines in Fig. 1, preparatory for removin'gthe barrel from the receiver, the screw or fore-armwill then be moved forwardly, so as to draw the tongues h'from out of grooves h, when the fore-arm will be detached from the barrel, so'as to give access to lever G, which pins" or' screws (1 d to the movable breechblock D, which latter is chambered to receive within. it the hammer I and its sear I and spring 11. The finger-lever E is suitable recessed to receive the trigger K or double trig-' gers K K, or a suitable trigger-plate holding the said trigger or triggers, and with which plate they may be pivoted by pins .25. The

movable breech-block being recured to the Fig. 3, the entire operating mechanism between the trigger-guard and rear end of barrel B, including the firing-pin, hammer, and its sear and trigger, will be carried out from the chamber of the receiver 0 and fully uncover or unclose the rear open end of the barrel of the fire-arm, so as to allow the operator 'to remove the shell of theexplodedcartridge or introduce a' cartridge within tliecartridgechamber of the barrelofthe arm.

The movable breech-block D is pivoted to :the receiver G by pivot-pin L, secured in the side portions of the said receiver, asshown in l :Figs. 1, 3, 4, and 5. The pivot-hole Dof this movable breech-block is made with an oblong form and with a width equalto the diameter "of. the pivot-pin L. and with a length about one-half greater (more or less)'than the diameter of said pivot-pin. This oblong pivot-hole D is so located-in relation to the said'pivote pin L and the elastickeeper M, .bearingagainst the front end of. the said breech-block,- that when the latter is in place in thereceiver C, as in, Figs. 1 and 4, the pivot-pin Lwill' occupy the forward portion of the oblong pivot-hole D, as shown,'while the said keeper will permit the breech-block to be readily moved forward to a short distance, so as toallow the inclines e made withthe breech-block D'to disengage from inclines 0 made with the receiver, (shown by full lines in Fig. 7,) and the incline e of the breech-blocktodiSengage with incline c,"also-made :with thereceiver. Any suitable mechanism can be-employed for holding thesaid movable breech block crowded rearwardly. against the rear portions of the receiver; yet I prefer'to employ the elastic keeper M, Figs. 1, 3, and 4, secured within the forward portion of the chamber of the receiver, and having one or more elastic limbs bearing on the forward end vportionof the breech-block D, or'a piece secured to the finger-lever E. This keeper is shown in Fig. 13 to be made with elastic arms m m,'which have bearings on the points of the forwardlyinclined ends n n,Figs. 1, 3, 4, and 6, of the sides of. the breech-block D. The breechblock D is shown to have with it the incline e, which engages with the inclines a, made with the rear end wall of the receiver 0, yet

this incline e canbe made wit-h the finger-1cver or anysuitable piece secured tosaid finger-lever. if preferred. The surfaces 6' and 0', provided, respectively, with the breechblock and receiver, are substantially correin Figs. 3 and 4, and when the breech-block D is held crowded rearwardly against the rear end wall of the receiver the said incline e and 0' will coact to hold the said breech-block securely in place and tightly closing the rear end of the chamber of the barrel B.

Pivoted on the pivot-pin L is the extractor 0, having its arm working within a suitable recess made in the movable breech-block and its head end portion working in a suitable recess made in the rear end portion of the barrel, as illustrated in Figs. 5 and 7. This extractor has made with its lower end portion and neighboring the pivot on which it moves, the step 0, which projects forward of the circular pivot end of said extractor and is also provided with a second step 0', which latter projects relatively forward of the curve of the first step 0, as illustrated in Fig. 7 by full lines, and by dotted lines in Figs. 1, 3, and 4. Made in the movable breech-block, at a point neighboring the pivot L and relatively forward of the center of the same, is the recess a, of size and form substantially corresponding with that of the step 0. When the movable breechbloclc is being thrown down toward position of full lines in Fig. 3, the inclines e c and e a will by their coaction move the said breechblock relatively forward, so that its oblong pivot-hole D will be carried forwardly until the pivot-pin L occupies the rearward portion of said'hole, as shown in said Fig. 3, and at the same time the recess a will be carried upwardly to receive the step or projection 0, (on the pivot-ed end of the piece or extractor 0,) when the breech-block will be keyed or locked from moving back or down, and will be so held until the breech-block has again been swung back into the chamber of the receiver. When the forward swinging movement of the breech-block is continued, the forward projections n nof said breech-block will be carried against the step 0, made with the piece or extractor O, and swing the said extractor rearwardly on its pivot, when the extractor, with its engaging lip engaging with the rim of the shell (not shown) in the chamber of the barrel, will withdraw the shell of the cartridge, so that it can be readily removed by the operator. A reverse movement of the fingerlever Will return all the said parts to their normal positions.

I is the hammer suitably pivoted within the chamber of the movable breech-block, and is provided with half and full cock notches p p for engagement with the sear I. This hammer is also provided with the step P, which is projected relatively forward of the pivot on which the said hammer moves, and with a second forwardly-projected portion P. (Shown by full lines in Figs. 1, 3, and 4, and by dotted lines P, Fig. 1.)

Q is the mainspring which actuates the hammer. This mainspring has its forward end secured within the forward portion of the chamber of the receiver, preferably by a screw, and has its body and free end portions extended rearwardly into the chamber of the movable breechblock D and relatively over the step or projection P of the hammer I. \Vhen the breech-block is in position, as shown in Fig. 1, the rearward and free end of said mainspring will have bearing on the upper side of the step or projection P of the hammer. When the breech-block D is being swung downwardly and forwardly, so as to carry the movable breech-block down and out from the chamber of the receiver, the step P of the said hammer will be carried away from the free or rearward end of the said mainspring Q. When the forward movement of said breech-block is continued, the upper projecting portion P of the hammer will be carried against the free end of said mainspring and set said hammer to half-cock. The swinging movement of the breech-block being continued, the hammer will be carried free from said mainspring, and the lower side of the firing-pin holder D will be carried to a bearing on the free end portion of said mainspring, substantially as shown in Fig. 3, when the breech-block will be held suspended partly from said mainspring and partly from the pivot on which it swings, and the said mainspring Q will operate to balance the fingerlever E and its attached movable breech D and hold them ready for their return from position shown in Fig. 3 to that shown in Fig. 1. In operating the finger-lever E for removal of its attached breech-block and for operating the extractor, this mainspring operates as an elastic check or stop at finish of the movement of said breech-block by the bearing of the rear free-end portion of the said mainspring against the lower side of the firing-pin holder D as above described. The scar I is held ready for engagement with the notches P P of the hammer by suitable spring i.

K is the trigger for operating the sear I. If preferred, the sear (as an independent piece) maybe omitted, and its portion engaging with the notches p p of the hammer may be made integral with the trigger, in which case the spring *6 will have bearing on the trigger at any suitable point.

In Fig. 4 are shown double triggers. The fore set-trigger K has a rearward extension that can be made to act at will with the sear I to operate the same for releasing the hammer, as does the single trigger shown in Fig. 1. Made in this fore set-trigger is notch it, which receives the free end of spring (Shown by full linesin Fig. 4 and by dotted lines in Fig. 14.) This fore set-trigger has also made with it lateral projection k for engagement with the forward end 70 of the arm of the rear set-trigger K. The rear set-trigger K is provided rearward of its pivot-pin with step I, which is relatively on a plane above its pivot-pin.

S is the main trigger-spring, which has made in its rearward half portion the central slots, through which slot the horizontal arms of the double set-trigger work. The front end of this spring is secured to a suitable trigger-plate T, which. receives the pivots t t free rear-end portion of the said spring is di-:

rectly over the step or projection lot the rear set-trigger and has bearing on the same when the forward end of the arm of the rear set.

trigger K is in engagement-with the projection of the fore trigger K. When'the hammer is set at full-cock and the sear I is in'engagement .with the full-cock notch' of the same and with its rear. end in positionfor receiving the-impulse from the arm of the rear set-trigger K, and a slight pressure of the fore trigger K will release. the front end of the arm ofthe rear set-trigger K, and at the sameti-me the spring S, pressing onthe step or projection lot the rear. set-trigger will give impulse to the forwardly-projected arm of the same and causes it to suddenly strike the rear-end of the searandi disengage it from the-full-cock notch of the hammer, when the. mainspring actuating the hammer will throw it-forward with. sufficient force against the;

firing-pin V to-cause it-,t0,- explode the cartridge in the barrel.

I The. trigger-plate T is shown, in Fig. 4 to have secured with it the double set-triggers and their respective actuating springs, and is also shown in said figure to be secured to the finger-lever E by .means of a screw U, which also holds the springs S and k in place for operation onthe respectiveset-triggers.

' Sunken in a side of the body of the hammerneighboring the half 'andfull cock notches p p (and in an area of the same which'will include both said notches and extend past the same to ashortdistance) is the fly-seat eghaving a circular head recess 2 communicating with said recessed seat. This fly-seat z and its adjoiningcircular head-recess z are sunken to asmall and equal distancebelow the surface of the side they arev made in.

- Z is the fly, made substantially as shown,

and having its lower end made with an acute angle and with an extension of length which will carry the angle of the lower and free end i beyond the line of the curve of the portion employment of a hole through the ham mer and a pintle form pivot as heretofore employed.

. After the hammer has been operated as above described to strike the firing-pin for exploding the cartridge, the operator will by means of the finger-leverE swingthebreechblock, with theportions of the lock, secured therewith, downwardly and forwardly from position of full lines in Figs. 1, 4, and 7 to that of full lines in Fig. 3, and whilesaid breechblock is being moved its full distance from position shown in Figsrl and7 to that infull lines in Fig.3 the several operating partsandelements above described, respectively, .will' be made to operate, as above described,- for 'unclosing the rear end of the barrel, for efbarrel secured thereto by a screw-thread, of

a wrench lever or arm which is secured to said barrel by a pivot, whereby it may be turned from position about parallel with the lower .side of said barrel to'an angle with the same, substantially asand for the purposes set forth.

2. The combination, witha receiver and a barrel which is secured in placeinthe same g by a screw-thread, of a lug connected with .said barrel and a lever or arm pivoted with said lug and capable at will of being moved 1 to a position about parallel with the lower side of saidbarrel and at an angle with the same,

and vice versa, substantially as andfor the purposes set forth.

3. The combination, with a receiver and a barrel which is secured therewith by a screw- .thread, a lug connected to said barrel,and a leveror arm which can at will beset atan angle to said barrel for revolving the same and be changed to a position neighboring the lower side of said barrel, of the removable fore-arm provided with arecess'which will receivesaid arm or lever when in position neighboring the lower. side ofv the barrel, substantially as and for the purposes set forth.

4. Thecombination, with the barrel. of a fire-arm and a receiver having in its forward end a recess a, of a piece which, ispivoted with av lug. connectedwith said barrel and which is extended to and serves as a button or locking device for engagement with the sides of, the said recess of the receiver, sub stantially as and for the purposes set forth.

5. In a fire-arm, the combination, with the receiver having itsforward end recessed and itsbarrel secured. to said receiver, of a forearm provided with a fore-arm plate .having tongues h, which engage in grooves it, provided inthe side-portionsofthe receiver,

,substantiallyas and for-the purposes set forth.

, 6. .In a fire-arm, the combination, with the.

receiver having a rigid connection with the barrel and having its forward end below the breech of the barrel recessed, and a movable breech-block carrying the parts of the lock except the mainspring of the hammer, of the hammer-mainspring rigidly secured in the forward part of the said receiver with its free end having bearing on the forwardly-extended step of the hammer only when the breechblock is in place within the receiver, substantially as and for the purposes set forth.

7. The combination, with a receiver, a barrel having a rigid connect-ion with said receiver, a hammer-mainspring secured in the forward portion of the said receiver with its free end projecting rearwardly in the chamber of a pivoted breech-block, of thehammer provided in its rear side with half and full cock notches and having with its front side a step for receiving the pressure of the mainspring for throwing the same forward, and

provided with a projection above said step which will have bearing against the opposite side of the free end of the mainspring when the breech-block is being thrown down from the receiver to throw the hammer to half or full cock, and the mechanism for holding the hammer to the place thrown by the said spring, substantially as and for the purposes set forth.

8. The combination, with the receiver and the barrel secured thereto, of a breech-block pivoted to said receiver and finger-lever secured to said breech-block, the latter containing the parts of the lock (excepting the mainspring of the hammer) and also the socket or holder of the firing-pin, of a mainspring for operating with the hammer and which has its fixed end secured in a recess contained in the forward portion of the receiver and its rear free end for operating the hammer working within the chamber of the breech-block and also coactingwith a pivot on which the breechblock turns to support and balance said breech-block and finger-lever when thrown down and out of the receiver, substantially as and for the purposes set forth.

9. The combination, with a breech-block which is pivoted to the receiver and contains the firing-pin, hammer, and mechanism for releasing the hammer, of the hammer-mainspring having its forward end secured to the receiver into which the breech-block works and its rear end free for alternate bearing against the forwardly-projecting step I for throwing the hammer forward against the firing-pin, and a projection P or P on the plane above for throwing the hammer back to half-cock or full-cock, substantially as and for the purposes set forth.

10. The combination,with the receiver provided with inclines c at its rear end, of the chambered movable breech-block containing the parts of the lock and having with its rear end the incline e for coaction with incline c, and provision for the forward movement of said movable breech-block when being thrown down for the passage of its incline e from out of engagement with the incline c, substantially as and for the purposes set forth.

11. The combinatiomwith the chambered receiver and a pivot-pin secured in its forward portion and havingin its rearward portion one or more inclines c, of the movable breech-block pivoted on said pivot-pin, with provision for its forward movement in relation to the receiver when being turned down and forward from the chamber of the same, and having one or more inclines e for coaction with the incline or inclines c of said receiver, substantially as and for the purposes set forth.

12. The combination, with a chambered receiver having a barrel rigidly secured to its forward end and having one or more inclines, as c c, in its rearward portion of chamber and a fixed pivot-pin in the forward portion of the same, of the movable breech-block contain ing the principal portions of the lock and provided wit-h one or more inclines for coaction with the incline or inclines made with the rear portions of the chamber of the receiver and an oblong pivot-hole receiving the said fixed pivot-pin, substantially as and for the purposes set forth.

13. The co1nbination,with the chambered receiver having secured with it the barrel and provided with one or more inclines c or c in its rearwardportion, and a pivot-pin in the forward portion of said chamber, of a breechblock pivoted by an oblong pivot-hole in its forward end on said pivot-pin and having one or more inclines for coaction with said inclines of said receiver, and provision for forcing the said breech'block rearwardly when it is in place in the chamber of said receiver, substantially as and for the purposes set forth.

14. The combination, with the chambered receiver having one or more inclines c c in its rearward portion and a fixed pivot-pin passing through the forward end portion of its chamber, and a breech-block carrying the main parts of the lock and having with its rear end portion one or more inclines for coaction with the incline or inclines of the receiver and in its forward end an oblong pivothole which receives the said fixed pivotpin, of an elastic keeper which has bearing on the forward end of said breech-block when it is in place within the chamber of the receiver and is out of engagement with said breech-block when the latter is thrown downward or forward, substantially as and for the purposes set forth.

15. The combination, with a breech-block which is secured with a chambered receiver by a fixed pivot which works in an oblong pivot-hole made in the forward end of the said breech-block and has one or more inclines which hold with the corresponding inclines made in the rear end of said receiver and which coact to give to the said breechblock a forward and endwise movement when it is being moved down and out from the chamher of the said receiver, of a yielding keeper applied to the forward end of the breech-block and holding with the same while the inclines of the breech-bolt and receiver are coacting, substantially as and for the purposes set forth.

16. The combination, with a receiver having fixed in the forward portion of its chamber a pivot-pin and provided at its rear end with one or more inclines c c and a movable breech-block containing the principal portions of the parts of the lock and provided in its rear end portion with one or more inclines for coaction with the said inclines of the said receiver and having in its forward end portion an oblong pivot-hole which receives the said fixed pivot-pinand also in its forward portion the recess a, made in its side and neighboring its oblong pivot-hole, of a piece pivoted onsaid pivot-pin and capable of entering the said recess awhen the breech-block has been moved to position downward and forward, so that the rearward portion of its oblong pivot-hole will receive the fixed pivotpin,substantia1ly as and for the purposes set forth.

17. The combination, with a chambered receiver and a barrel rigidly secured to the same and a'pivot-pin secured in the chamber of the receiver at a point relatively at or near and below the rear end of the said barrel, of a breech-block working within said chamber andcontaining the principal parts'of the lock and pivoted by its forward end with the said pivot-pin and means for. moving said breechblock out of and away from the chamber of the said receiver, and the extractor pivoted also on'the said-pivot-pin and provided with a step or projection for engagement with the movable breech-block when it is being moved downwardly and forwardly from said receiver,

substantially as and for the purposes set forth.

18. The combination, with the breech-block which is pivoted within a chambered receiver at a point relatively below the rear end of a barrel which is .secured to the said receiver, of an extractor which is pivoted to the pivotpin on which the breech-lock turns and is proof the breech of the barrel and before the breech-block has been moved to. its full distance downward and forward, substantially as and for the purposes set forth.

' 19. The combination, with abreech-block which is pivoted within the chamber of the receiver bya pivot-pin which is located relatively at the rear end of the breech of thebarrel and below the same and is provided w1th a recess a made neighboring its oblong -pivot-hole, of the extractor provided with projections 0 o, and also pivoted on the said pivot-pin,.and a lever secured to said breechblock, substantially as and for the purposes set forth.

20. The combination, with a chambered receiver having the barrel secured thereto and provided with one or more inclines c c at the end of its chamber, of a breech-block having with its rear endcorresponding inclines and containing the principal parts of the lock and provided in its forward end with an oblong pivot-hole which receives the pivot on which said breech-block swings, and an extractor which will become engaged with the said breech-block when the latter has been moved downward and forward so that its oblong pivot-hole receives in its rearward portion the pivot-pin, substantially as and for the purposes set forth.

21. The combination of the breech-block provided in its rear end with oneor more inclines e e andhaving located inits forward end an oblong pivot-hole from which it swings by a pivot-pin which is contained within areceiver having corresponding inclines and also provided on its forward end with the incline n, which Wlll have bearing agai nstthe keeper when the said breech-block is in place within the chamber of the receiver and. also have bearing against the lower side of the socket 0 receiving the barrel when said'breech-block is turned fully downward and forward, substantially as and for the'purposes set forth.

22. The'combination, with the'socket portion of the receiver to which the-barrel issecured, of the hammer-mainspring, and'a binding-screw holding the fixed end of said spring firmly secured to said socket and its free end portion within the chamber of themo'vable breech-block which contains the other parts of the lock, substantially as and for the'purposesset forth.

23. The combination, with a hammer provided with half and full cook notches" and having in itafiy-seat which is sunkenin one of its sides to. a small distance from the side and containing the hammer and sear, a fingerlever, a trigger, and a hammer-mainspring which has its forward end secured with the receiver and its rear free end bearing on a forwardly-projected step of the hammer when the breech-block is in place in the receiver, substantially as and for the purposes set forth.

25. Thecombination, with a trigger-plate and double set-triggers pivoted therewith with provision for the rear set-trigger being locked at will with the front set-trigger, of the slotted horizontal rear trigger-spring having its for-' ward end secured to the trigger-plate, its slot receiving the horizontal arms of the triggers and its rear end bearing on the step or projection which is relatively rearward of the rear set-trigger, substantially as and for the purposes set forth.

26. The combination, with a trigger-plate having double set-triggers pivoted therewith, the front set-trigger being provided with a notch relatively forward of its pivot and the rear set-trigger with a projection or step which is relatively rearward of its pivot and provision for locking the forward limb of the rear set-trigger with the front set-trigger, of a spring secured to the forward part of the trigger-plate with its free end working in a notch made in the front set-trigger and a horizontal slotted mainspring also secured to the front portion of the trigger-plate with its slot receiving the horizontal arms of both settriggers and its rear end having bearing on the step or projection 011 the rear set-trigger, substantially as and for the purposes set forth.

27. The combination, with a finger-lever connected with a trigger-plate having double set-triggers pivoted therewith, a slotted mainspring arranged on the upper side of said trigger-plate and relatively parallel with the same, the'horizontal limbs of both triggers working through the slot thereof and its rearward end bearing on a projection or step made with a rear side of the rear settrigger, of a breech-block pivoted to a receiver and secured to said finger-lever and containing a hammer and scar, and the hammer-mainspring secured in the receiver forward of the hammer, substantially as and for the purposes set forth.

EUGENE PRINGLE.

Witnesses:

JOHN MAODOUGALL, CHARLES SELKIRK. 

